Tell us about the job
Takes about a minute. No obligation.
On a heat pump repair call in Marlboro County, a contractor's first questions are about the compressor and the reversing valve, because those parts absorb the work of moving heat into a cold house. Homes in Marlboro County, SC run heat about five months a year, from November through March. Cold outdoor air forces the heat pump to work harder to extract heat, and that strain accumulates in the compressor windings and the reversing valve solenoid over years of winter cycling. A refrigerant charge that was slightly low in November gets worse by March. Contractors here find that heating-season faults are rarely one bad event and more often slow degradation that finally crosses a threshold.
Ductwork in a house does not get replaced when the equipment does. Half the homes in Marlboro County, South Carolina were built in 1977 or earlier (2020-2024 ACS 5-year). That gap between what the ducts were built around and what they carry now shows up in a heat pump repair as pressure imbalances, leaks at joints that have flexed and dried out, and airflow problems that look like a failing unit until a contractor pulls a register cover and checks the run itself. A repair call that started with the heat pump may end with findings inside the duct system that change the scope of the work.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit sits outside the house and holds the compressor and the condenser coil. The compressor is where a contractor often starts: when it fails, the system stops moving heat entirely. The condenser coil sits around it and is a common source of problems when it gets blocked or corroded.
Inside the house, the air handler contains the evaporator coil and the blower fan, which pulls air across the coil and pushes it through the home. The reversing valve, also housed in the outdoor unit, is the piece that lets the system heat and cool. When it sticks or fails, the system locks into one mode.
The drawing shows a general layout of these components, and a licensed contractor determines what applies to your specific house and system.
Get matched in Marlboro CountyMarlboro County, by the numbers
83 severe weather events were recorded in Marlboro County, South Carolina between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Marlboro County, South Carolina were built in 1977 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesMarlboro County, South Carolina holds 12,077 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 63.0% of the occupied homes in Marlboro County, South Carolina (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Governing Heat Pump Repair in Marlboro County, South Carolina1 sourced rules and standards
Licensing Rules for HVAC Repair in Marlboro County, South Carolina
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.
Severe Weather Events in Marlboro County
Extreme weather puts real stress on heat pump systems, and how much stress depends entirely on where the equipment runs. A local repair contractor in Marlboro County accounts for that history when diagnosing wear and setting equipment back to proper function.
83 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.